Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pazh...11..216z&link_type=abstract
(Pis'ma v Astronomicheskii Zhurnal, vol. 11, Mar. 1985, p. 216-221) Soviet Astronomy Letters (ISSN 0360-0327), vol. 11, Mar.-Apr
Astronomy and Astrophysics
Astronomy
Power Spectra, Solar Flares, Solar Spectra, Solar X-Rays, Fourier Transformation, H Alpha Line, Spectrum Analysis
Scientific paper
A spectral analysis of the data obtained from the Prognoz 5 - 7 stations in the course of the experiment on the measurement of solar soft X-rays before hard X-ray bursts has been carried out (Kocharov et al., 1983). Several quasi-periodic components (with periods ≡1.5 hour, ≡40, ≡10, ≡2 min) have been found, and time variations of their parameters while approaching the burst have been studied. These components may serve as one of the indications of a pre-flare situation.
Charikov Yu. E.
Zhdanov Alexander
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